1 files changed, 72 insertions, 0 deletions
diff --git a/lib/make/aclocal.m4 b/lib/make/aclocal.m4
new file mode 100644
index 00000000..83f5e99b
--- /dev/null
+++ b/lib/make/aclocal.m4
@@ -0,0 +1,72 @@
+dnl /*@@
+dnl   @file      aclocal.m4
+dnl   @date      Thu Oct 21 00:05:58 1999
+dnl   @author    Tom Goodale
+dnl   @desc 
+dnl   Local Cactus macros
+dnl   @enddesc
+dnl   @version $Header$ 
+dnl @@*/
+
+
+dnl  These are copies of the standard autoconf macros, except they
+dnl  use AC_TRY_COMPILE rather than AC_TRY_CPP to check for headers.
+dnl  This gets round the problem on cygwin where the gnu cpp finds
+dnl  the gcc headers and not the ones for the actual compiler.
+
+dnl CCTK_CHECK_HEADER(HEADER-FILE, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+AC_DEFUN(CCTK_CHECK_HEADER,
+[dnl Do the transliteration at runtime so arg 1 can be a shell variable.
+cctk_safe=`echo "$1" | sed 'y%./+-%__p_%'`
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(cctk_cv_header_$cctk_safe,
+[AC_TRY_COMPILE([#include <$1>], [return 0;], eval "cctk_cv_header_$cctk_safe=yes",
+  eval "cctk_cv_header_$cctk_safe=no")])dnl
+if eval "test \"`echo '$cctk_cv_header_'$cctk_safe`\" = yes"; then
+  AC_MSG_RESULT(yes)
+  ifelse([$2], , :, [$2])
+else
+  AC_MSG_RESULT(no)
+ifelse([$3], , , [$3
+])dnl
+fi
+])
+
+dnl CCTK_CHECK_HEADERS(HEADER-FILE... [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+AC_DEFUN(CCTK_CHECK_HEADERS,
+[for cctk_hdr in $1
+do
+CCTK_CHECK_HEADER($cctk_hdr,
+[changequote(, )dnl
+  cctk_tr_hdr=HAVE_`echo $cctk_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
+changequote([, ])dnl
+  AC_DEFINE_UNQUOTED($cctk_tr_hdr) $2], $3)dnl
+done
+])
+
+
+dnl CCTK_FIND_NULLDEVICE
+dnl Have to do it in this rather bizarre way
+dnl as cygwin emulates /dev/null 
+AC_DEFUN(CCTK_FIND_NULLDEVICE,
+[AC_MSG_CHECKING([for the null device])
+AC_CACHE_VAL(cctk_cv_nulldevice,
+[
+if test -d /dev ; then
+  eval "cctk_cv_nulldevice=/dev/null"
+else
+  cat > NUL <<EOF
+test
+EOF
+  if `cat NUL > /dev/null 2>/dev/null` ; then
+    eval "cctk_cv_nulldevice=NUL"
+  fi
+fi
+])
+if eval "test -n \"$cctk_cv_nulldevice\"" ; then
+  AC_MSG_RESULT($NULL_DEVICE)
+  AC_DEFINE_UNQUOTED(NULL_DEVICE, "$cctk_cv_nulldevice")
+else
+  AC_MSG_RESULT("not found")
+fi
+])